<!doctype html>
<html>
<head>
<title>XMLHttpRequest: send() during onloadstart</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
</head>
<body>
<script>
var testAsync = async_test("Attempting a send() during onloadstart");
testAsync.step(() => {
    var xhr = new XMLHttpRequest();
    xhr.open("POST", "resources/delay.php?iteration=1&delay=1000");
    xhr.onloadstart = testAsync.step_func(() => {
        assert_equals(xhr.readyState, XMLHttpRequest.OPENED);
        // Step 2 of send(): "If the send() flag is set, throw an InvalidStateError exception."
        assert_throws_dom('InvalidStateError', () => { xhr.send(); });
    });
    xhr.onloadend = testAsync.step_func(() => {
        assert_equals(xhr.readyState, XMLHttpRequest.DONE);
        testAsync.done();
    });
    xhr.send();
});
</script>
</body>
</html>